CVE-2019-13556

mediumpriority · track · 36EPSS 0.021 · 82 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.12% (82nd) EPSS

CVSS 6.5 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

In WebAccess versions 8.4.1 and prior, multiple stack-based buffer overflow vulnerabilities are caused by a lack of proper validation of the length of user-supplied data. Exploitation of these vulnerabilities may allow remote code execution.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedWebAccesscisa_csaf_ot
Advantech has released Version 8.4.2 of WebAccessNode to address the reported vulnerabilities. Users can download the latest version of WebAccessNode at the following location:https://support.advantech.com/support/DownloadSRDetail_New.aspx?SR_ID=1-MS9MJV&Doc_Source=Download
https://support.advantech.com/support/DownloadSRDetail_New.aspx?SR_ID=1-MS9MJV&Doc_Source=Download

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121USCWE-121US

affected products (4)

Products and version ranges known to be affected.

WebAccess: Versions 8.4.1 and priorall versionscisa_csaf_otUS
Advantech WebAccess≤ 8.4.1cisa_csaf_otUS
n/a WebAccess≤ versions 8.4.1 and priorenisa_euvdEU
advantech webaccess≤ 8.4.1nvdUScpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-19-260-01Advantech WebAccess2019-09-17icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code, access files and perform actions at a privileged level, or delete files on the system.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2019-09-18modified 2026-06-17

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+16124 more

references (7)

External citations — patches, advisories, analysis.

scry

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